The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2024
Filed:
Nov. 26, 2019
Tokyo Electron Limited, Tokyo, JP;
Taro Ikeda, Nirasaki, JP;
Toshifumi Kitahara, Fuchu, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
Provided is a plasma processing apparatus capable of suppressing abnormal discharge. The plasma processing apparatus includes: an upper electrode and a lower electrode which are disposed inside a processing container so as to face each other inside the processing container; and a dielectric shower for gas introduction disposed below the upper electrode, wherein the plasma processing apparatus generates plasma in a space between the upper electrode and the lower electrode. The upper electrode includes: at least one slot configured to introduce VHF waves into the processing container; and a gas flow path provided independently of the at least one slot and in communication with the dielectric shower.